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J1 Input – Time Interval - Event Time
The Time Interval - Event Time (TIET) option measures a 1 PPS or Event input signal on J1 against the
XLi derived time. The rising edge of the pulse is measured against XLi time with 5 ns resolution.
Pulse Width
Active Edge:
Amplitude (DC):
Logic Low:
Logic Hi:
Impedance:
Resolution:
Accuracy
See "F110 – J1 Input (TIET)" on page 99.
Note:
Any stray input capacitance loading will impact TIET measurements
Note:
Configuring J1 as the input for a time code reference source is not supported.
J2 Output – Rate Out
Rate:
Duty cycle:
Amplitude (TTL):
Quantity:
Connector:
Factory setting:
See "F111 – J2 Output (Rate)" on page 102.
Note:
Configuring J2 as a Programmable Pulse Output (PPO) is not supported.
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100 ns, min.
Rising
< 1.25V and Min. 300mV
>1.25V and Max 10V
100 k Ω , 50 Ω
5 ns, Single Shot
"System Time & Frequency Accuracy" on page 10
Refer to
1 PPS, 10 PPS, 100 PPS, 1 kPPS, 10 kPPS, 100 kPPS, 1 MPPS, 5
MPPS, 10 MPPS
40-60% ± 10%
TTL Levels into 50 Ω
1
Female BNC
10 MPPS
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XLi IEEE 1588 Clock
997-01510-03, Rev. C, 12/12/2006
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